111404043505 has 16 divisors (see below), whose sum is σ = 137456850960. Its totient is φ = 86639424768.

The previous prime is 111404043473. The next prime is 111404043533. The reversal of 111404043505 is 505340404111.

It can be written as a sum of positive squares in 8 ways, for example, as 10975969 + 111393067536 = 3313^2 + 333756^2 .

It is a cyclic number.

It is not a de Polignac number, because 111404043505 - 2⁵ = 111404043473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1899522 + ... + 1957291.

It is an arithmetic number, because the mean of its divisors is an integer number (8591053185).

Almost surely, 2^111404043505 is an apocalyptic number.

It is an amenable number.

111404043505 is a deficient number, since it is larger than the sum of its proper divisors (26052807455).

111404043505 is a wasteful number, since it uses less digits than its factorization.

111404043505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856980.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 111404043505 its reverse (505340404111), we get a palindrome (616744447616).

The spelling of 111404043505 in words is "one hundred eleven billion, four hundred four million, forty-three thousand, five hundred five".